A 13-year-old boy who was found suspended from a pull-up bar in his bedroom accidentally strangled himself with his dressing gown sash, an inquest found.

Harry Rock, from Eastbourne, East Sussex, was working out on exercise equipment attached to his bedroom door frame when the belt wrapped itself around his chin and suffocated him.

The inquest heard that Harry, known affectionately as 'Bear', was being home-schooled because he was so academically advanced, and that he wanted a six-pack.

Coroner James Healy-Pratt recorded a verdict of misadventure, saying the boy had died of inadvertent suspension in 'a tragic experiment that went sadly wrong'.

Family members applauded the decision and spoke of their relief after it definitively ruled out any suicidal intent.

Mother Amanda Rock had argued throughout that the dressing gown sash had not been wrapped around her son's neck when she found him hanging from the exercise bar early in the afternoon of March 20, 2017.

Harry Rock (pictured), 13, was found suspended by a dressing gown sash from a pull-up bar attached to his bedroom door frame. The coroner ruled that the boy, nicknamed 'Bear', died from misadventure